Private Well Water Testing in Nevada
County-by-county USGS area-risk estimates for private wells across Nevada — arsenic exceedance probability and private-well population — plus how to test your own well at a Nevada-certified laboratory.
Nevada private-well risk summary
Counties covered
17
Nevada counties with modeled risk data.
People on private wells
area estimate110,939
estimated across covered Nevada counties.
Average arsenic risk
area estimate26%
average modeled chance a well exceeds 10 µg/L arsenic across covered counties.
Nevada counties
- Clark County17% arsenic exceedance (area estimate)25,714 people on private wells
- Washoe County20% arsenic exceedance (area estimate)23,262 people on private wells
- Churchill County60% arsenic exceedance (area estimate)10,765 people on private wells
- Nye County29% arsenic exceedance (area estimate)10,621 people on private wells
- Lyon County42% arsenic exceedance (area estimate)10,566 people on private wells
- Douglas County25% arsenic exceedance (area estimate)9,632 people on private wells
- Humboldt County19% arsenic exceedance (area estimate)4,412 people on private wells
- Elko County15% arsenic exceedance (area estimate)4,404 people on private wells
- Carson City12% arsenic exceedance (area estimate)3,396 people on private wells
- White Pine County12% arsenic exceedance (area estimate)1,694 people on private wells
- Pershing County32% arsenic exceedance (area estimate)1,678 people on private wells
- Lander County28% arsenic exceedance (area estimate)1,443 people on private wells
- Storey County20% arsenic exceedance (area estimate)1,248 people on private wells
- Lincoln County20% arsenic exceedance (area estimate)1,077 people on private wells
- Eureka County21% arsenic exceedance (area estimate)694 people on private wells
- Esmeralda County26% arsenic exceedance (area estimate)248 people on private wells
- Mineral County39% arsenic exceedance (area estimate)85 people on private wells
Find a Nevada-certified testing lab
Get your well tested at a Nevada-certified laboratory. We list certification programs by state.
These figures are USGS area estimates: statistical groundwater models describing how likely elevated contaminant levels are across a county. They are not designed to predict the concentration in any single well. Only testing your own well reveals its water quality.
By TapWaterData Editorial
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